<template>
    <el-container class="home-container">
        <el-header>
            <div>
                <img src="../assets/wzh-logo.jpg" alt="" style="height: 55px;">
                <span>电商后台管理系统</span>
            </div>
            <el-button type="info" @click="logout">退出</el-button>
        </el-header>
        <el-container>
            <el-aside :width="isCollapse ? '64px' : '200px'">
                <div class="toogle-button" @click="toggleCollagse">|||</div>
                <!-- 侧边栏菜单区 -->
                <el-menu background-color="#333744" text-color="#fff" active-text-color="#409efe" unique-opened
                    :collapse="isCollapse" :collapse-transition="false" router :default-active="activePath">
                    <!-- 一级菜单 -->
                    <el-submenu :index="item.path + ''" v-for="item in menulist" :key="item.id">
                        <!-- 一级菜单的模板区域 -->
                        <template slot="title">
                            <!-- 图标 -->
                            <i :class="iconsObj[item.id]"></i>
                            <!-- 文本 -->
                            <span>{{item.authName}}</span>
                        </template>

                        <!-- 二级菜单 -->
                        <el-menu-item :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id"
                            @click="saveNavState('/' + subItem.path)">
                            <i class="el-icon-menu"></i>{{subItem.authName}}
                        </el-menu-item>
                    </el-submenu>
                </el-menu>
            </el-aside>
            <el-main>
                <router-view></router-view>
            </el-main>
        </el-container>
    </el-container>
</template>

<script>
    export default {
        data() {
            return {
                // 左侧菜单数据
                menulist: [],
                iconsObj: {
                    '125': 'el-icon-user-solid',
                    '103': 'el-icon-lock',
                    '101': 'el-icon-s-goods',
                    '102': 'el-icon-s-order',
                    '145': 'el-icon-s-data'
                },
                //是否折叠侧边栏
                isCollapse: false,
                //被激活的地址
                activePath: ''
            }
        },
        created() {
            this.getMenuList();
            this.activePath = window.sessionStorage.getItem('activePath');
            // console.log(activePath);
        },
        methods: {
            logout() {
                window.sessionStorage.clear('token');
                this.$router.push('/login');
            },
            //获取所有菜单
            async getMenuList() {
                const { data: res } = await this.$http.get('menus');
                if (res.meta.status !== 200) return this.$message.error(res.meta.msg);
                this.menulist = res.data;
                // console.log(res);
            },
            //折叠侧边栏
            toggleCollagse() {
                this.isCollapse = !this.isCollapse;
            },
            //保存链接的激活状态
            saveNavState(activePath) {
                window.sessionStorage.setItem('activePath', activePath);
                this.activePath = activePath;
            }
        }

    }
</script>

<style lang="less" scoped>
    .home-container {
        height: 100%;
    }

    .el-header {
        background-color: #373d41;
        display: flex;
        justify-content: space-between;
        padding-left: 10px;
        align-items: center;
        color: #fff;
        font-size: 20px;
    }

    .el-header div {
        display: flex;
        align-items: center;

    }

    .el-header div span {
        margin-left: 15px;
    }

    .el-aside {
        background-color: #333744;
        transition: linear 0.2s;
    }

    .el-aside ul {
        border: none;
    }

    .el-main {
        background-color: #eaedf1;
    }

    .iconfont {
        margin-left: 10px;
    }

    .toogle-button {
        background-color: #4a5064;
        color: white;
        font-size: 10px;
        text-align: center;
        line-height: 24px;
        letter-spacing: 0.2em;
        cursor: pointer;
    }
</style>
